Shop Men's at RalphLauren.com, the Official Site of Ralph Lauren. Denim Sport Shirt - This relaxed-fitting sport shirt is crafted from stonewashed indigo-dyed cotton and features our multicolored signature embroidered pony. Button-down collar. Applied buttoned placket. Long sleeves with buttoned barrel cuffs. Split back yoke with a box pleat ensures a comfortable fit and a greater range of motion. Our multicolored signature embroidered pony accents the left chest. 100% cotton. Machine washable. Imported.